I currently want to create a custom inventory for a tileEntity.

 

My class inherits another inventory class which implements the rest of the methods

 

But I don't get slots which are not multiples of 9.

Is there a way to get that working without using the container class creating container, slots, inventory, GUI and all that overhead for only 1 slot inventory?

(I want the player to put in 1 item, and I want to read the content of the slot and nothing more).

 

/**
* The custom chest of the field.
*/
public class InventoryField extends InventoryCitizen
{
    private ItemStack[] stackResult = new ItemStack[1];
    private String customName = "";
    /**
     * Creates the inventory of the citizen.
     *
     * @param title         Title of the inventory.
     * @param localeEnabled Boolean whether the inventory has a custom name.
     */
    public InventoryField(final String title, final boolean localeEnabled)
    {
        super(title, localeEnabled);
        customName = title;
    }

    @Override
    public int getSizeInventory()
    {
        return 1;
    }

    @Override
    public int getInventoryStackLimit()
    {
        return 1;
    }

    @Override
    public int getHotbarSize()
    {
        return 0;
    }

    public ItemStack getStackInSlot(int index)
    {
        return this.stackResult[0];
    }

    @Override
    public boolean hasCustomName()
    {
        return true;
    }

    /**
     * Sets the given item stack to the specified slot in the inventory (can be crafting or armor sections).
     * @param index the slot to set the itemStack.
     * @param stack the itemStack to set.
     */
    @Override
    public void setInventorySlotContents(int index, ItemStack stack)
    {
        this.stackResult[index] = stack;

        if (stack != null && stack.stackSize > this.getInventoryStackLimit())
        {
            stack.stackSize = this.getInventoryStackLimit();
        }

        this.markDirty();
    }

    /**
     *  Get the name of this object. For citizens this returns their name.
     * @return the name of the inventory.
     */
    @Override
    public String getName()
    {
        return this.hasCustomName() ? this.customName : "field.inventory";
    }
}

Probably has something to do with your container.

I don't use any container I think. InventoryCitizen inherits from IInventory.

How do you put Items into the inventory?

I open the inventory like this.

 

InventoryField inventoryField = ColonyManager.getColony(colony.getID()).getField(pos).getInventoryField();

playerIn.displayGUIChest(inventoryField);

 

And I put items in by drag and drop.

You should have your own Container and Gui. You will also need a GuiHandler which is a class that implements IGuiHandler. There are plenty of tutorials out there for those, as they haven't really changed much.

I thought there may be a way to do this without any custom gui and container. Since it is only 1 single inventory slot and I do not need anything besides from this =D

 

But thank you for your help.

 

I'll get into all that container and GUI stuff then =D

You can't.  GUIChest assumes that all inventories opened with it will have 9n inventory slots.